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Finding the Fourth Proportional to 728.73, 1,093.95 and 522.75

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Solution

The fourth proportional to 728.73, 1,093.95 and 522.75 is: 784.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    728.73 : 1,093.95 = 522.75 : x
  2. Step 2: Convert to fraction form
    728.73/1,093.95 = 522.75/x
  3. Step 3: Cross multiply
    728.73x = 1,093.95 × 522.75
  4. Step 4: Simplify right side
    728.73x = 571,862.36
  5. Step 5: Solve for x
    x = 571,862.36/728.73
  6. Step 6: Final answer
    x = 784.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.